Cab Ground

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May 3, 2023 | 11:15 PM

RTT

Thread Starter

Fleet Mechanic

Joined: Apr 2017

Posts: 1,391

Likes: 106

From: COSMOS

Cab Ground

Is a ground wire needed to ground the cab to the frame

if so what AWG

May 4, 2023 | 01:13 PM

kenny nunez

Cargo Master

Joined: Oct 2011

Posts: 2,233

Likes: 297

From: Kenner,La.

Cab ground

Use a #10 wire with the correct terminals frame to cab, you want the same from the engine to the cab. Also run another #10 to the radiator support from the battery. Strange things happen when things are not grounded together.

May 4, 2023 | 05:03 PM

1browski

Cargo Master

Joined: Dec 2015

Posts: 2,250

Likes: 343

I grounded my cab from the top of the engine to the cab on my 72 f250 like it was factory on my 70 f250. I think I will add an extra for the heck of it from the frame to cab while I am making a ground to the bed.

May 4, 2023 | 09:52 PM

RTT

Thread Starter

Fleet Mechanic

Joined: Apr 2017

Posts: 1,391

Likes: 106

From: COSMOS

Quote:

Originally Posted by kenny nunez

This is exactly what I have read , but did not know 100% about the cab to frame !
I was already in the process of battery to radiator support with a #12 . I did almost twist 2 #12's together because I thought one #12 was slightly too small

There is actually a place on the firewall for an engine ground

I have a #12 on it . I will change all to a #10 or bigger in the future

THANX.......

Wonder what 2 #12's equal to

May 4, 2023 | 09:59 PM

RTT

Thread Starter

Fleet Mechanic

Joined: Apr 2017

Posts: 1,391

Likes: 106

From: COSMOS

Quote:

Originally Posted by 1browski

I totally agree with Kenny cause I read about the exact 3 locations as he but did not know the size wire & if you actually needed a wire because the cab sits on the frame

I kinda figured the engineers would want an actual wire ........Now I must figure out where to put the wire..........

Thank-you both for the replies.....

May 5, 2023 | 09:56 AM

1964 Model

Mountain Pass

Joined: Nov 2022

Posts: 226

Likes: 83

From: South East Kansas

I make my own out of old battery cables. Probably heavier than necessary, but it works.

May 5, 2023 | 03:05 PM

1browski

Cargo Master

Joined: Dec 2015

Posts: 2,250

Likes: 343

My engine and battery grounds are made from leftover 1 gauge cable. My cab ground is 6 gauge leftovers.

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May 15, 2023 | 02:39 PM

RTT

Thread Starter

Fleet Mechanic

Joined: Apr 2017

Posts: 1,391

Likes: 106

From: COSMOS

Quote:

Originally Posted by 1964 Model

I make my own out of old battery cables. Probably heavier than necessary, but it works.

I have done some commercial electrical work & was told you can never have too big a ground , one case where BIGGER is better !!! I started post to see what you guys thought was the minimum or factory specification !!! I just wanted a quick solution until I could find a correct or even bigger one !!!
I do think but far from certain that my brake lights & marker lights are brighter since I added the ground !!!
I have seen a ground strap actually , but think that may have been for a Chevrolet , maybe a Ford but it looked good but was $15.00 I think , probably more...........and even more since then since everything seems to have gone up in price..............!!!